Describe the different methods of asexual reproduction. Give examples. Very very very very very short answer
Answers
Answer:
The different methods of asexual reproduction are as follows:
(1) Binary fission- The process in which parent cell elongates and gets divided into two identical daughter cells is called binary fission. Each daughter cell grows into an independent adult. It takes place in unicellular organisms.
(2) Endospore Formation- The method in which a spore wall is formed around a bacterial cell to form an endospore is called endospore formation. Under favorable conditions, this endospore germinates to form an active bacteria.
(3) Vegetative propagation- The type of asexual reproduction in which vegetative parts of a plant like stems, leaves, and root, etc. give rise to new ones is called vegetative propagation. Examples: stem cutting in Champa, eye growth in potatoes, bud in case of Myriophyllum.
(4) Budding: It involves the formation of a new organism from a projection called bud. After growing to full size, the budgets detached from a parent and forms a new independent individual. It is commonly observed in yeast.
(5) Spore Formation: In this mode of reproduction, spores germinate and develop into a new individual, under favorable conditions. The spores are tiny spherical unicellular structures protected by a thick wall. It is seen in ferns and moss.
(6) Fragmentation: It is a form of asexual reproduction in which a new organism is formed from the fragments of the parent organism. It is the only mode of asexual reproduction in Spirogyra.
Explanation:
1) Fission
2) Budding
3) Spore formation
4) Regeneration
5) Fragmentation
6) Vegetative propagation
Fission
In fission, unicellular organism splits to form new organisms. It is a process of reproduction in organisms such as protozoa and many bacteria. There are two types of fission binary fission, multiple fission. Examples of unicellular organisms that undergo binary fission are amoeba, paramecium, Leishmania etc. Plasmodium undergoes the process of multiple fission
Budding
The word bud means small outgrowth. In the process of budding, a small bud grows on the body of the parent organism and when the time comes it detaches itself to form a new organism. Hydra and yeast undergoes the process of budding.
Spore formation
The method of spore formation occurs in both unicellular and multicellular organisms. This process takes place in plants. In spore formation, the parent plant produces hundreds of reproductive units called spores in its spore case. When this spore case of the plant bursts, these spores travel in air and land on food or soil. Here they germinate and produce new plants. Fungi like Rhizopus, Mucor, etc., are examples of spore formation.
Vegetative propagation
It is a type of asexual reproduction in which new plants are produced from roots, stems, leaves and buds.
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